摘要
不同粳稻品种(系)间倒伏指数存在显著性差异(F=2.139,P<0.01).粳稻品种在演进、改良进程中,稻株茎秆抗倒伏能力明显提高,抗倒性与高产性能够在较高水平上保持协调.在与倒伏有关的几个主要农艺性状中,挫折重与倒伏指数相关性最大(r=-0.7883**).单茎干物重与倒伏指数亦呈显著负相关(r=-0.4852**),株高则与倒伏指数存在显著正相关(r=0.5535*).
Significant differences were found to exist among various cultivates/lines of japonica rice ( F = 2.139, P < 0.01). Resistance of the rice culm to lodging substantially improves in the development and evolution of rice cultivars and the harmony between lodging resistance and high yield potential is maintained at a high level. Of the lodging- related characters studied, potence of resistance to being broken is highly significantly correlated with lodging, r being - 0.7883* * ). Weight/culm and plant height are significantly correlated with lodging, the correlation coefficient T being -0.4852* * and 0.5535* , respectively.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2003年第3期234-237,共4页
Journal of Southwest Agricultural University
基金
江苏省农业三项工程项目
江苏省农业科技开发资助项目(BL 200013)
关键词
粳稻品种
倒伏指数
农艺性状
japonica rice
lodging index
agronomic character
